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Finding the Fourth Proportional to 945,623.80, 1,279,080.45 and 945,623.80

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Solution

The fourth proportional to 945,623.80, 1,279,080.45 and 945,623.80 is: 1,279,080.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,623.80 : 1,279,080.45 = 945,623.80 : x
  2. Step 2: Convert to fraction form
    945,623.80/1,279,080.45 = 945,623.80/x
  3. Step 3: Cross multiply
    945,623.80x = 1,279,080.45 × 945,623.80
  4. Step 4: Simplify right side
    945,623.80x = 1,209,528,915,634.71
  5. Step 5: Solve for x
    x = 1,209,528,915,634.71/945,623.80
  6. Step 6: Final answer
    x = 1,279,080.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.